June weather in Lake St. Louis, MO
The average temperature in Lake St. Louis in June is 73.5°F (63.3°F–83.7°F). Average precipitation: 4.72 inches.
June is a summer month in Lake St. Louis, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 20.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 40m. For travel, June is a comfortable month to visit.
Avg High
83.7°F
Avg Low
63.3°F
Precipitation
4.72 in
Daylight
14h 40m
June records in Lake St. Louis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 90.0°F (1958) | 39.0°F (1966) | 1.72 in (2013) |
| June 2 | 93.0°F (2018) | 45.0°F (1966) | 2.58 in (2006) |
| June 3 | 93.0°F (2023) | 43.0°F (1969) | 1.43 in (1983) |
| June 4 | 93.0°F (2023) | 48.9°F (1964) | 2.57 in (1998) |
| June 5 | 95.0°F (2011) | 44.1°F (1993) | 3.60 in (2025) |
| June 6 | 96.1°F (1977) | 46.9°F (1989) | 1.57 in (1996) |
| June 7 | 93.0°F (2020) | 45.0°F (1983) | 3.63 in (1990) |
| June 8 | 91.9°F (1963) | 50.0°F (1975) | 4.17 in (1957) |
| June 9 | 95.0°F (1958) | 44.1°F (1978) | 1.38 in (1982) |
| June 10 | 93.9°F (1963) | 45.0°F (1989) | 1.60 in (1957) |
| June 11 | 93.9°F (1963) | 44.1°F (1980) | 2.76 in (2006) |
| June 12 | 93.9°F (1977) | 48.9°F (1992) | 3.28 in (2002) |
| June 13 | 91.9°F (2010) | 43.0°F (1985) | 1.03 in (1997) |
| June 14 | 97.0°F (1963) | 48.0°F (1962) | 1.96 in (2005) |
| June 15 | 96.1°F (1987) | 48.0°F (1959) | 3.23 in (1957) |
| June 16 | 95.0°F (2016) | 39.0°F (1989) | 3.38 in (2009) |
| June 17 | 97.0°F (2016) | 43.0°F (1961) | 1.26 in (1985) |
| June 18 | 97.0°F (2018) | 48.0°F (1999) | 1.64 in (2011) |
| June 19 | 97.0°F (2021) | 48.9°F (1965) | 1.18 in (2015) |
| June 20 | 93.0°F (1971) | 48.0°F (1976) | 1.81 in (1963) |
| June 21 | 95.0°F (2016) | 43.0°F (1980) | 1.38 in (1967) |
| June 22 | 95.0°F (2022) | 44.1°F (1992) | 2.28 in (2019) |
| June 23 | 95.0°F (1960) | 48.9°F (2021) | 1.60 in (1969) |
| June 24 | 95.0°F (2009) | 48.0°F (1961) | 5.95 in (2000) |
| June 25 | 98.1°F (2012) | 46.0°F (1974) | 2.00 in (1993) |
| June 26 | 98.1°F (2022) | 46.9°F (1958) | 3.27 in (2003) |
| June 27 | 93.9°F (1966) | 50.0°F (1992) | 2.58 in (1957) |
| June 28 | 98.1°F (2012) | 48.9°F (1992) | 2.28 in (1957) |
| June 29 | 106.0°F (2012) | 54.0°F (2004) | 2.82 in (1960) |
| June 30 | 102.9°F (2012) | 52.0°F (1984) | 1.12 in (1957) |